assembly type tower crane for power transmission tower

摘要

The present invention relates to a prefabricated tower crane for a transmission tower. The conventional construction of a transmission tower using a mobile crane vehicle and a transmission tower construction method using a winch have not only a construction of a transmission tower in a mountain and a narrow area, but also a problem that the construction work is not easy.;Therefore, the present invention provides a base end (1) provided in the central portion between the four base A, B, C, D (11) (12) (13) (14); A support (2) on which the lower end is rotatably coupled to the support shaft (21) on the base end (1); A crane equipped with a tower mast 31 is inserted into the support frame 22 installed on the upper side of the support 2, the boom 32 having an auxiliary boom 32A at the front end is provided on the upper side A main body 3; A support (4) having a lower end rotatably coupled to the hinge shaft (40) on the other end (1) of the support (2); The winch 51 is provided on the lower back side of the support 2, and the pulleys A, B, C, D 52, 53 (on both sides of the upper end of the support 2 and the upper ends of the support 4, respectively) 54 and 55 are installed to drive the drive wires 56 drawn from the winch 51 to the strut 2 via the pulleys A, B, C, D 52, 53, 54, 55. A first driving part 5 fixed thereto; A trolley E 61 is provided on the rear side between the trolleys B and C 53 and 54, and the bases B and C 12 and 13 are formed on the first support wire 62 through the trolley E 61. A first support part 6 fixed to the head; Second support portion for fixing the second support wire 70, one end of which is fixed to the front and rear sides of the upper end of the support (2) to the base A, B, C, D (11) (12) (13) (14) (7); Lifting pulleys A and B (80A) and (80B) are installed on both sides of the lower end of the tower mast 31 to pull the drive wires 56 drawn from the winch 51 to pulley A (52), lifting pulley A (80A), The transmission tower consists of a pulley B, C (53) (54), hoistway B (80B), and a second driving part (8) fixed to the support (2) via the pulley D (55). Not only is construction possible, but it also has the effect of widening the choice of regions for selecting transmission towers.;In addition, it is possible to construct a transmission tower by raising the reinforcing steel frame in a state in which the crane is positioned at the desired height as described above, thereby increasing the simplicity of the work and the speed and efficiency of the work.